1.Anticancer based on glycolysis pathway in tumor cells
Qianqian WANG ; Quanlin GUAN ; Bingdong ZHU
Journal of International Oncology 2011;38(12):914-916
Glucose metabolism of cancer cells presents Warburg effect.In resent years,more and more experiments demonstrate that the therapeutics based on aerobic glycolysis pathway in cancer cells restrict energy and inhibit tumor proliferation through the inhibition of a variety of moleculars,genes and signal pathways.These can provide an opportunity for targeted cancer therapies and possess enormous potential advantages and broad prospects in clinical application.
2.Aspirin for the prevention of colorectal adenomas: a systematic review
Yuanli ZHANG ; Quanlin GUAN ; Qianqian WANG ; Shuxun SHI
Journal of International Oncology 2011;38(12):943-947
Objective To assess the effect of aspirin for the chemoprevention of colorectal adenomas by meta analysis of the published literature.Methods Cochrane strategy in combination with manual search was used to identify previously published randomized controlled trials by searching PubMed,EMBase,Cochrane Library,China Journal Full-text Database(CNKI),Chinese Scientific Journal Full-text Database (CSJD) and Chinese Biomedical Literature Database (CBM).Results Six randomized controlled trials involving a total of 2 858 patients were studied.Of the six trials,two trials were performed in China,four trials were in the Europe and the United States.Some sufficient evidence were found to support that aspirin could prevent of colorectal adenomas compared with placebo group ( P =0.003,RR =0.66,95% CI:0.50-0.86).No adaquate evidence supported the role of aspirin in the prevention of development of colorectal cancer ( P =0.29,RR =0.65,95% CI:0.30-1.44).High-dose aspirin ( P =0.10,RR =0.85,95% CI:0.71-1.30 ) and low-dose aspirin could prevent colorectal adenomas compared with placebo group( P =0.02,RR =0.57,95% CI:0.36-0.90),and a dose-dependent associtation was found.The risk of stroke was higher in any dose of aspirin compared with placebo group ( P =0.04),and the risks of adverse events had no significant differences in all groups.Conclusion Aspirin might prevent the development of colorectal adenomas in individuals,but could not prevent the colorectal cancer.
3.Expression of TRAP1 in esophageal carcinoma and its influence on the prognosis
Chun LI ; Jing LIU ; Zhengyuan GUAN ; Qianqian FENG
Chinese Journal of Clinical and Experimental Pathology 2017;33(2):135-139
Purpose To investigate TRAP1 expression in esophageal cancer and its relationship with clinicopathological features and prognosis.Methods Expression levels of TRAP1 in 60 pairs of cancer and adjacent normal tissues were detected by immunohistochemistry,and the relevance between TRAP1 and clinicopathological features was evaluated.Kaplan-Meier and Cox proportional regression analyses were performed to determine the association of TRAP 1 expression and survival of the patients.Results The positive expression rate of TRAP1 was 55.0%,and the amount of relative protein transcript level was 2.7 ± 1.1 in the cancer tissue.The positive expression rate of TRAP1 was 11.7%,and the relative expression protein was 0.5 ± 0.4 in the adjacent normal tissue.The expression level of TRAP1 in cancerous tissue was significantly higher than that of tissue adjacent to carcinoma.There was no statistically significant difference between the expression levels of TRAP1 with sex,age,location,and degree of differentiation (P > 0.05).There was statistically significant relationship between recurrence,metastasis and TNM stages with the expression of TRAP1 levels (P < 0.05).The average survival time of TRAP1-negative patients was 69.0 months (95% CI:60.2-77.9) while the TRAP1-positive patients was 34.2 months (95% CI:24.4-44.1).High levels of TRAP1 were correlated with decreased survival of postoperative esophageal cancer patients (P < 0.05).Conclusion TRAP1 is overexpressed in esophageal cancer and associated with the progression and prognosis of esophageal cancer.
4.Imaging of 18F-FDG PET/CT in Adult Onset Still's Disease
Qianqian ZHAO ; Zhiwei GUAN ; Xiaojian JI ; Ying ZHANG ; Jinshui YANG ; Jian ZHU ; Feng HUANG ; Jianglin ZHANG
Chinese Journal of Medical Imaging 2017;25(3):216-221
Purpose The diagnosis of adult onset Still's disease (AOSD) is usually difficult due to the lack of specific clinical manifestation.This paper summarizes the manifestations of 18F-FDG PET/CT in adult onset Still's disease and investigates the value of PET/CT in diagnosis and differential diagnosis of AOSD.Materials and Methods Fiftyfour patients who was diagnosed as AOSD were selected and underwent 1 8F-fluorodeoxyglueosepositron emission tomography/computed tomography (18F-FDG PET/CT).The clinical features,laboratory examination and the maximum standard uptake value (SUVmax) of liver,spleen,bone marrow,lymph node were collected.Then the main PET/CT manifestations of patients with AOSD,the influence factor of SUVmax and correlation between SUVmax and laboratory indexes were analyzed.Results FDG accumulation occurred mainly in bone marrow (88.89%;SUVmax:3.91 ± 1.16),spleen (79.63%,SUVmax:3.24±0.89) and lymph node (77.78%;SUVmax:3.83± 1.97).FDG accumulation can also occurred in joints,parotid gland,submandibular gland,pleural and other organs.Compared with the nonglucocorticoid group,SUVmax of the spleen,bone marrow and lymph node were significantly decreased in the glucocorticoid group with or without fever (P<0.05),whereas the SUVmax of liver,spleen,bone marrow and lymph node between the two glucocorticoid groups were not statistically different (P>0.05).The SUVmax of liver,spleen,bone marrow and lymph node between two groups with or without disease-modifying anti-rheumatic drugs were not statistically different (P>0.05).Correlation analysis showed that spleen SUVmax and lactate dehydrogenase,bone marrow SUVmax and C reactive protein were weakly correlated (r=0.33 and 0.30,P<0.05).Conclusion The main manifestations of 18F-FDG PET/CT of AOSD are FDG accumulation in spleen,bone marrow and lymph nodes.Glucocorticoid can reduce the SUVmax.18F-FDG PET/CT can help to rule out malignancy,guide biopsy and assist in definite diagnosis of AOSD.
5.Resveratrol regulates iNOS to inhibit atherosclerosis in C57BL/6J mice
Li QIN ; Li GUAN ; Ruishan LIN ; Qianqian XUE ; Jinwen XU ; Fuman YAN ; Xiaoying LI ; Haimei LIU
Chinese Journal of Pathophysiology 2015;(9):1601-1605
AIM:To investigate the effect of resveratrol on the lipids ( CHOL, TG, LDL-C and HDL-C) , ni-tric oxide ( NO) , peroxynitrite anion ( ONOO-) and the expression of inducible nitric oxide synthase ( iNOS) in the artery of the mice with ovariotomy ( OVX) .METHODS:The lipid levels and NO level in the serum were measured .The chan-ges of atherosclerosis were evaluated with Oil Red O staining .The expression of iNOS was measured by DAB staining and Western blot .The ONOO-production was measured by DAB staining .RESULTS:Compared with sham group , the levels of the lipids and NO production in OVX +high fat (HF) group were increased (P<0.05).Compared with OVX+HF group, the levels of the lipids and NO production in resveratrol group were decreased (P<0.05).Fourteen weeks later, the atherosclerosis model was successfully established .Compared with OVX +HF group, the iNOS expression and the ONOO-production in resveratrol group were decreased ( P<0.05 ) , while those in sham group were increased ( P <0.05).CONCLUSION:Resveratrol prevents and treats atherosclerosis by inhibiting the iNOS expression in C 57BL/6J mice.
6. Research progress in monkeypox virus detection
Chinese Journal of Experimental and Clinical Virology 2017;31(3):273-276
Monkeypox is a zoonotic disease caused by monkeypox virus. It is similar to human smallpox, although typically much less serious and limited to human-to-human transmission. Smallpox no longer occurs following its worldwide eradication in 1980, whereas monkeypox still occurs sporadically in parts of Africa. To respond to the outbreak of monkeypox correctly, we need to rely on effective method of virus detection. This review presents the development in monkeypox virus detection method in recent years to provide reference for the situation of potential virus spreading into our country and for preventing and acting correctly against bioterrorism.
7.A survey on the cognitive function and its correlative factors in 49 centenarians
Shengkun LIU ; Qianqian CHENG ; Weijie WANG ; Xiaohong CHANG ; Yuqin GUAN
Chinese Journal of Geriatrics 2018;37(3):335-338
Objective To evaluate the cognitive function and its correlative factors in centenarians.Methods Forty-nine subjects in Zhongxiang city were included in this mass screening.Questionnaire was utilized to collect basic data,including age,gender,ability of daily life,depression,life habits,body mass index,and history of chronic diseases on all the subjects.And the mini-mental state examination(MMSE)was adopted to evaluate cognitive function of old people.T test and chi-square test were used to compare the difference in effectiveness of multiple different factors on cognitive function,while binary logistic regression analysis was used to assess the effects of multiple different factors on cognitive function.Results The mean score of the ability of different dimensions of cognitive function was (7.10 ± 2.71) in direction,(1.94 ±± 0.80) in memory,(0.61 ± 1.07) in attention and computation,(1.92 ± 0.86) in recall,and (4.73 ± 2.14) in speech,respectively,with total score of cognitive function of(16.30±6.02) in forty-nine centenarians.Normal cognitive function was found in 25 cases,and decreased cognitive function was found in 24 cases.Single factor logistic analysis indicated that body mass index(t=-3.399,P=0.001)and self-rating depression scale(t=-5.731,P<0.001) were lower in patients with normal cognitive function than in patients with declined cognitive function.And smoking patients were associated with higher rates of normal cognitive function than the non-smoking patients(87.5% vs.43.9%,x2 =5.091,P=0.028),and patients with normal hearing were associated with higher rate of normal cognitive function than patients with hearing loss(70.3 % vs.27.3 %,x2 =9.01,P=0.030).Multivariate logistic analysis indicated that depression index(β=-14.40,P=0.001) and body mass index(β=-0.424,P=0.015) were independent effective factors for cognitive function.Conclusions Improvement of the condition of depression and controlling the body mass index are hopeful for recovering or postponing their cognitive impairment in centenarians.
8.Antimicrobial resistance and molecular typing of Salmonella typhimurium in Wuxi city, 2011-2018
Wenting CAO ; Dan SHA ; Qianqian QI ; Guangyuan MA ; Hongxia GUAN
Chinese Journal of Laboratory Medicine 2022;45(2):157-163
Objective:Analysis of the antibiotic resistance profiles and molecular typing of Salmonella typhimurium ( S. typhimurium) isolated in Wuxi city from 2011 to 2018. Methods:A total of 109 S. typhimurium isolates were detected from different types monitoring samples in Wuxi city from 2011 to 2018. Microbroth dilution method was used to test antimicrobial susceptibility of S. typhimurium for 17 antimicrobial agents. Pulsed field gel electrophoresis (PFGE) was used to conduct molecular typing. Statistical analysis was carried out using Chi-square test. Results:Tetracycline-resistance and ampicillin-resistance were most frequency in 109 S. typhimurium isolates, 69.72% (76/109) and 68.81% (75/109), respectively. For compound sulfamethoxazole, chloramphenicol, ciprofloxacin, ampicillin/sulbactam, azithromycin, nitrofurantoin, cefotaxime and aztreonam, the resistance rates were 23.85%(26/109), 22.02%(24/109), 11.93%(13/109), 4.59%(5/109), 3.67%(4/109), 3.67%(4/109), 0.92%(1/109), 0.92%(1/109), respectively. All isolates were susceptible to amikacin, ertapenem, imipenem, meropenem, ceftazidime and ceftazidime-avibactam. Azithromycin-resistance isolates were decreasing year by year gradually. The aztreonam and cefotaxime-resistant isolates were found since 2018, while chloramphenicol and compound sulfa-resistant isolates showed upward trend simultaneously. Conclusions:S. typhimurium in Wuxi city exhibited highly resistant to tetracycline and ampicillin. The significant variability existed between genotype and phenotype of S. typhimurium.
9.Clinicopathologic characteristics of Epstein-Barr virus-positive inflammatory follicular dendritic cell sarcoma:report of nine cases
Qianqian CHEN ; Wenwen LUO ; Jiexia GUAN ; Qiong LIANG
Chinese Journal of Clinical and Experimental Pathology 2024;40(1):56-59,65
Purpose To explore the clinicopathologic fea-tures of Epstein-Barr virus-positive inflammatory follicular den-dritic cell sarcoma(EBV+IFDCS).Methods The clinico-pathologic features of 9 cases of EBV+IFDCS were retrospective-ly analyzed and followed up.Results The age of 9 patients with EBV+IFDCS ranged from 22 to 78 years(mean 44.7 years).7 cases occurred in the liver and 2 in the spleen.Fi-brinoid degeneration and hyaline degeneration in the vessel walls(6/9),eosinophilic infiltration(3/9),and epithelioid granulo-mas(2/9)were seen in some cases.The tumor cells expressed CD21(7/9),CD23(8/9)and CD35(9/9),partially ex-pressed SMA(6/9)and D2-40(1/9).It was noteworthy that 2 cases from the spleen accompanied by high expression of IgG4 plasma cells(80-135/10 HPF),and in the liver(0-36/10 HPF).All cases were followed up for 3-84 months,with 6 pa-tients disease-free,2 patients underwent metastasis,1 patient lost of follow-up.Conclusion EBV+IFDCS is a rare low-grade malignant tumor.EBER in situ hybridization and immunohisto-chemical detection play important roles in the diagnosis and dif-ferential diagnosis of EBV+IFDCS.Surgical resection is the main therapeutic intervention for EBV+IFDCS,and patients re-quire long-term post-surgical follow-up.
10. Generation and characterization of specific monoclonal antibodies against monkeypox virus
Qianqian GUAN ; Li ZHAO ; Jiao REN ; Panpan HUANG ; Huijuan WANG ; Yingzhu CHEN ; Na ZHU ; Wenjie TAN ; Li RUAN ; Houwen TIAN
Chinese Journal of Experimental and Clinical Virology 2017;31(2):153-156
Objective:
To generate monkeypox virus specific monoclonal antibodies for further establishing monkeypox virus immunofluorescence assay.
Methods:
Monkeypox virus A29 protein, vaccinia ortholog A27 protein and cowpox ortholog 162 protein were expressed in